The United States is currently experiencing an intense cold front linked to the so-called Arctic “polar vortex”. The icy air ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

As the polar vortex fades, temperatures in Northern Europe, portions of Asia, and the eastern United States will be below average. Temperatures for the last week of March were pretty normal across ...

The Polar Vortex's collapse will cause a major Arctic blast from central Canada into the Northeast United States, even if a progressive and dynamic weather pattern will persist across North ...

An April cold snap is expected to bring unusually cold temperatures to the eastern half of the US next week. The cold snap could impact new spring vegetation and lead to frost in some areas.

Reports suggesting that the polar bear at Chicago's Lincoln Park ... "demonstrate" how freezing cold it really is across the United States.

Don't put away those winter coats just yet. An April cold snap is forecast for much of the eastern half of the U.S. early next week, forecasters said, with freezes likely across portions of the ...

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.

The pattern responsible for severe weather and flash flooding in the central United States will ease in the week ahead - but ...

Researchers note that February was also characterised by an extremely strong stratospheric polar vortex - a large spinning mass of cold air in the stratosphere around 15 miles above the Arctic ...